diff --git a/Project.toml b/Project.toml
index 9953d4a3..a8be31d9 100644
--- a/Project.toml
+++ b/Project.toml
@@ -63,7 +63,7 @@ ForwardDiff = "<0.10.35, 0.10"
 GeometryBasics = "0.3, 0.4"
 GeometryTypes = "0.8"
 IterativeSolvers = "0.9"
-JSON = "0.21"
+JSON = "0.21, 1"
 JuliaFormatter = "1"
 MacroTools = "0.5"
 Makie = "0.21"